By Michael Kelly Wednesday, September 25, 2002; Distasteful as it may be, some notice should be paid to the speech that the formerly important Al Gore delivered Monday at the Commonwealth Club in San Francisco. This speech, an attack on the Bush policy on Iraq, was Gore's big effort to distinguish himself from the Democratic pack in advance of another possible presidential run. It served: It distinguished Gore, now and forever, as someone who cannot be considered a responsible aspirant to power. Politics are allowed in politics, but there are limits, and there is a pale, and Gore has now...